Intel Core Ultra 7 366H vs Intel Core Ultra X7 368H Comparison

The Intel Core Ultra 7 366H and the Intel Core Ultra X7 368H are both 16-core, 16-thread mobile processors built on the Panther Lake architecture, yet the benchmark data reveals a clear split in their performance profiles. The 366H dominates the majority of recorded tests, while the 368H secures decisive victories in specific math-heavy workloads. The overall average benchmark scores place the 366H at 41,263 and the 368H at 40,518, a difference of roughly 1.8%. Both processors sit at the 87th percentile among all CPUs in the database, indicating they occupy a similar tier of overall capability, but their respective strengths suggest different ideal use cases.

Where Each One Wins

The Intel Core Ultra 7 366H is the more consistent performer across the broadest range of workloads. It wins 15 of the 17 head-to-head benchmark comparisons, including all six Cinebench tests, which measure both single-core and multi-core rendering performance. Its victories in these tests are narrow but uniform, with margins ranging from 0.8% to 1.0%. This pattern suggests the 366H has a slight but reliable edge in both lightly threaded and fully threaded rendering tasks.

Beyond rendering, the 366H excels in data processing and security-related tasks. It leads by 4.6% in PassMark data compression and by 2.4% in data encryption. The largest margin of victory for the 366H comes in extended instructions, where it scores 26,901 against 25,669 for the 368H, a 4.8% advantage. This indicates the 366H is better suited for workloads that utilize advanced CPU instruction sets, such as cryptographic operations or specialized scientific computing.

The 366H also wins in general productivity metrics. It outperforms the 368H by 1.4% in PassMark multithread, by 0.8% in physics, and by 4.5% in random string sorting. The single-thread performance is also in favor of the 366H, with a 0.9% lead in both PassMark single-thread tests.

The Intel Core Ultra X7 368H, while losing most comparisons, takes decisive wins in two specific PassMark tests. It beats the 366H by 2.0% in floating point math (105,681 vs 103,615) and by a more substantial 5.0% in integer math (88,083 vs 83,695). These are the only two tests where the 368H comes out ahead, but the margins are the largest of any head-to-head comparison. This suggests the 368H has a specialized advantage in raw arithmetic throughput, which could translate to better performance in simulations, financial modeling, or other number-crunching applications.

FAQ

Q: Which processor has the higher boost clock?

A: The Intel Core Ultra X7 368H has a boost clock of 5.00 GHz, while the Intel Core Ultra 7 366H has a boost clock of 4.80 GHz.

Q: Do both processors have the same core and thread counts?

A: Yes, both the Intel Core Ultra 7 366H and the Intel Core Ultra X7 368H have 16 cores and 16 threads.

Q: What is the difference in memory bandwidth between the two?

A: The Intel Core Ultra 7 366H has a memory bandwidth of 115.2 GB/s, while the Intel Core Ultra X7 368H has a higher bandwidth of 153.6 GB/s.

Q: Which processor wins in Cinebench R23 multi-core?

A: The Intel Core Ultra 7 366H wins with a score of 28,477, compared to 28,221 for the Intel Core Ultra X7 368H, a margin of 0.9%.

Q: Are both processors based on the same architecture?

A: Yes, both are built on the Panther Lake architecture and use a 3 nm process node.

Q: Which processor has a larger PCIe lane allocation?

A: The Intel Core Ultra 7 366H supports Gen 5 with 12 lanes (CPU only), while the Intel Core Ultra X7 368H supports Gen 5 with only 4 lanes (CPU only).

Head-to-Head Benchmarks

The most significant win for the Intel Core Ultra 7 366H is in PassMark data compression, where it scores 327,455 against 312,927 for the 368H. This 4.6% margin is the second-largest of any test and indicates a clear advantage in file compression and decompression tasks. The 366H also shows a strong lead in extended instructions, with a 4.8% advantage, and in random string sorting, with a 4.5% advantage. These results point to the 366H being more efficient at handling complex data manipulation and sorting algorithms.

In the Cinebench suite, the 366H maintains a consistent, albeit smaller, lead. For example, in Cinebench R23 multi-core, the 366H scores 28,477, which is 0.9% higher than the 28,221 achieved by the 368H. The single-core results are nearly identical, with the 366H scoring 4,020 versus 3,984 in Cinebench R23 single-core, also a 0.9% difference. This consistency across all Cinebench versions (R15, R20, R23) suggests the 366H has a slight architectural advantage in both rendering and general single-thread performance.

The Intel Core Ultra X7 368H, while behind in most tests, delivers its most notable victory in PassMark integer math. The 88,083 score is 5.0% higher than the 83,695 from the 366H, making it the largest margin of victory in either direction across all benchmarks. The 368H also wins in floating point math, with a 2.0% advantage (105,681 vs 103,615). These two wins are significant because they represent raw computational throughput, which can be critical for scientific and engineering applications.

The overall benchmark score, which averages all recorded tests, confirms the 366H is the stronger all-around processor. Its average score of 41,263 is higher than the 40,518 for the 368H. In the context of the nearest rivals for the 366H, it is 0.1% ahead of both the Intel Core Ultra 7 356H and the AMD Ryzen AI 5 PRO 440, and 0.3% behind the AMD Ryzen 9 5900X. The 368H, by comparison, is 0.1% ahead of the Intel Core 7 253PE and the Intel Core 5 223PE, and 0.2% ahead of both the AMD Ryzen 9 7940H and the Intel Xeon 6507P.

Specification Differences

The two processors share many core specifications, but key differences exist in clock speeds, memory support, and PCIe lanes. The base clock for both is 2.00 GHz, but the boost clock differs. The Intel Core Ultra 7 366H boosts to 4.80 GHz, while the Intel Core Ultra X7 368H boosts to 5.00 GHz. This higher boost clock on the 368H likely contributes to its wins in the math-heavy PassMark tests.

Memory support is another differentiator. The 366H supports both DDR5 and LPDDR5X memory, while the 368H supports only LPDDR5X. This is reflected in the memory bandwidth, where the 368H has a higher rating of 153.6 GB/s compared to 115.2 GB/s for the 366H. Both use a dual-channel memory bus.

The PCIe configuration is significantly different. The 366H provides Gen 5 with 12 lanes (CPU only), while the 368H provides Gen 5 with only 4 lanes (CPU only). This gives the 366H a substantial advantage in connectivity for discrete GPUs or high-speed storage devices.

The integrated graphics also differ. The 366H features Intel Xe3 Graphics, while the 368H features Arc B390. This is a notable distinction, as the Arc B390 is a higher-tier graphics solution, but the benchmark data provided does not include graphics performance tests.

Other specifications are identical. Both have a TDP of 25 watts, use the Intel BGA 2540 socket, and are based on the Panther Lake architecture. Neither supports ECC memory, and neither has an unlocked multiplier. Both were released on the same date and are currently marked as active production.

Architecture Differences

Architecturally, the two processors are nearly identical, as both are built on the Panther Lake architecture using Intel’s 3 nm process node. The core configuration is the same: 16 cores and 16 threads, with a per-core L1 cache of 192 KB and a per-core L2 cache of 2.5 MB. The shared L3 cache is also identical at 18 MB.

The generation names differ slightly, with the 366H listed as "Ultra 7 (Panther Lake-H)" and the 368H as "Ultra X7 (Panther Lake-H)". This naming difference does not correspond to any architectural change in the recorded data. The foundry for both is Intel.

The key architectural differences are in the memory controller and PCIe implementation. The 368H’s support for only LPDDR5X, as opposed to both DDR5 and LPDDR5X for the 366H, indicates a more specialized memory path. The higher memory bandwidth on the 368H (153.6 GB/s vs 115.2 GB/s) suggests the memory controller is tuned for higher throughput, which aligns with its superior performance in the integer and floating point math tests.

The PCIe lane allocation is a major architectural divergence. The 366H’s 12 lanes vs the 368H’s 4 lanes (both Gen 5, CPU only) means the 366H is designed for systems with more expansion capability. This could impact real-world performance in tasks that rely heavily on data transfer to and from peripherals, although the benchmark data does not directly measure this.

The integrated graphics difference, with the 366H using Intel Xe3 Graphics and the 368H using Arc B390, points to a different balance of on-die resources. However, without graphics benchmarks in the database, the impact of this difference cannot be quantified. The overall architecture remains Panther Lake for both, and the recorded benchmark scores show that most workloads favor the 366H, with the 368H carving out a niche in pure arithmetic processing.